The result is that net exports will continue to be a drag on GDP, but the optimist would note that the most recent datapoint (August) was before the collapse in the US dollar, which should (all else equal) make U.S. goods / services more attractive (i.e. cheaper) to foreign businesses / consumers. The opposite point of view on this is that it will simply cause the imports we need (i.e. low cost consumer goods from China / petroleum) to be more expensive.